Timeline for Is every generator of $Z({\rm Spin}_n^{\epsilon}(q))$ a square element in ${\rm Spin}_n^{\epsilon}(q)$?
Current License: CC BY-SA 4.0
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| Jun 21, 2020 at 10:56 | answer | added | Yi Wang | timeline score: 0 | |
| Jun 1, 2020 at 14:39 | answer | added | Derek Holt | timeline score: 1 | |
| May 14, 2020 at 23:48 | comment | added | Yi Wang | Thanks for your comments, sorry for my behavior, I will not do any further edits. | |
| May 14, 2020 at 10:32 | comment | added | Derek Holt | @AlexM. Yes, but the questions themselves, A and B remain the same, so it is not really a moving target. The rest is just commentary, which readers are free to ignore. But I agree that the OP should be told not to make any further edits unless they are to report genuine progress on answering the questions (in which case they could become an answer). | |
| May 14, 2020 at 7:55 | comment | added | Alex M. | @DerekHolt: The question is reasonable, the OP's use of the MO resources is not. Worse, even after abx's remarks about the edits, the OP persisted in his behaviour. There were 57 edits noted by abx, now there are 59. Plus, there is something else wrong with the question: with all these edits, it has become a moving target. Not voting to close, but flagging to the attention of a moderator. | |
| May 14, 2020 at 7:41 | comment | added | Derek Holt | @abx I think you are being unreasonable. It is a perfectly valid question, which unfortunately has not yet been completely answered. | |
| May 14, 2020 at 4:08 | review | Close votes | |||
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| May 14, 2020 at 4:00 | history | edited | Yi Wang | CC BY-SA 4.0 |
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| May 14, 2020 at 3:54 | comment | added | Yi Wang | Ok, Sorry for that. | |
| May 14, 2020 at 3:50 | comment | added | abx | I’m voting to close this question because 57 insignificant edit is an incorrect way to use MO. | |
| May 14, 2020 at 3:48 | comment | added | abx | Now we are at 57 edits! That must be a world record. | |
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| May 7, 2020 at 1:53 | comment | added | Gerry Myerson | 39 versions of this question! | |
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| Apr 18, 2020 at 23:54 | comment | added | Yi Wang | Thank you very much! | |
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| Mar 19, 2020 at 22:29 | comment | added | Richard Lyons | The answer to B is "not necessarily." The smallest counterexample I know is $\Omega_6^-(3)$, which has a center $Z$ of order $2$. In the group $P\Omega_6^-(3)=\Omega_6^-(3)/Z$, there is a single conjugacy class of involutions. The inverse image of any of these involutions is a pair of involutions in $\Omega_6^-(3)$. You can find these facts in the {\it Atlas of Finite Groups} by Conway et al. Note that $P\Omega_6^-(3)\cong PSU_4(3)$. | |
| Mar 19, 2020 at 18:57 | history | edited | Nick Gill |
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| Mar 18, 2020 at 10:57 | history | edited | Nick Gill | CC BY-SA 4.0 |
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| Mar 18, 2020 at 3:22 | comment | added | LSpice | What is the ground field? Since you're specifying a quadratic form, I guess not $\mathbb C$. Is it $\mathbb R$? | |
| Mar 18, 2020 at 2:50 | history | edited | Yi Wang | CC BY-SA 4.0 |
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| Mar 18, 2020 at 0:20 | review | First posts | |||
| Mar 18, 2020 at 1:36 | |||||
| Mar 18, 2020 at 0:15 | history | asked | Yi Wang | CC BY-SA 4.0 |